Definition of "whimsy" in English

noun

1. A quaint and fanciful idea; a whim; playfully odd behaviour.

2. An impulsive, illogical or capricious character.

3. (mining, countable) A whim (capstan or vertical drum).

4. (countable) A jigsaw puzzle piece that has been cut into a recognizable shape, as if on a whim; often the shape is representative of the theme of the image used for the puzzle.

5. (glassblowing, countable) The support that protects a finished piece as it is detached from a punty.

verb

1. (transitive) To fill with whimsies or whims; to make fantastic; to craze.

adjective

1. Synonym of whimsical.